CVE-2026-105016

critical

Description

Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105016

https://github.com/dotnet/runtime/security/advisories/GHSA-5gjq-3f94-rcf7

https://github.com/dotnet/runtime/issues/135695

https://github.com/dotnet/announcements/issues/446

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-100459

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-13

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical